What is a Typical Characteristic of a Quantitative Trait

Question

What is a typical characteristic of a quantitative trait?
A) No environmental influence on the trait
B) Polygenic basis
C) Discontinuous distribution of phenotypic trait.
D) Usually the graph of trait versus frequency has two distinct peaks.

Accepted Answer

A typical characteristic of a quantitative trait is that it has a polygenic basis, meaning it is influenced by multiple genes. This leads to a continuous variation in the trait rather than a discontinuous distribution. Environmental factors can also play a role in the expression of the trait. A graph of the trait versus frequency often shows a normal distribution rather than two distinct peaks.